Removable pile for forming concrete piling.



R. J. BEALL, Jn. BBMOVABLE PILE FOB. FORMING CONCRETE FILING.

APPLICATION FILED APILBI, 1904.

Patented Aug. 1, 1911.

.04 D. Ju

////////////// ,l/ /l /K/ object being to provide is preparatory pile and its p'oint constructed in `force and cannot be withdrawn after f'driven without the exercise of still UN ITED4 STATES PATNT OFFICE.

REMOVAIBLE'PILE FOR FGRMING CNCBETE FILING.

Specification of Letters Patent.

Patented Aug. 1, i911.

Application tiled April 21. 1904,.V Serial No. 204,281.

To 'all whom 'it may concern:

Be it known that I, RICHARD BEALL, Jr., a citizen of the Unlted States,`residin at Washington, in the District of Colu-mia have invented a vRemovable Pile for Forming Concrete Piling, of which the following is a specification.

My invention relates to that method `of formingiles of concrete or cementlwhich consists 1n first drivin a pile into the ground then withdrawing said' pile, and then filling the opening formed thereby with concrete or cement in lastic or Huid form, willich when it sets fbrms the permanent P One object of my invention is to provide for driving or withdrawing the removable pile with'the 'exercise of much less power than is required when piles lof this class as heretofore constructed are used, a further at the bottomof the.' opening formed by the removable pile a base for the ermanent cement or concrete pile, and a sti l further object being to rovide a construction' for under-water wor or for use in unstable ground.

In vthe accompanying drawing: Figure 1 a vertical sectional view of a removable accordance with my invention, showing the pile driven into the ground in order to formV the opening for the subsequent reception of the permanent pile. Fig. 2 illustrates a special method of lling in the concrete,

whichis adopted insome-cases. Fig. 3 is ga.l

view showing the permanent pile Vproduced by filling the opening with cement or concrete after the withdrawal of theY preparaview showing a., ermanent pilb which is provided for un er-.' water work and for unstable ground.

For the urpose of forming in the ground openings or the reception 4of, concrete orl cement to constitute permanent ,iling'le use of an ordinary wooden or metalgprepa tory pile `of cylindrical formor tapering'in1 ward y from to to bottom isob'lectionable, for Vthe reason t at the frictional old of the earth lupon 'the sides of the 'pile is such that the pile cannot be driven beyond a. limited distance without theexercise of destructive being eater of the eart upon force, the frictional' Vhold theA pile beingmow have been pro althou h it ma be a solid vlapproximating that ofthe pile during the drivin ,'periphery. Hence there is no tendenc d -b'y .atmospheric`- pressure, owing to the fact' that the withrawalof the pile tends to create a partial vacuum in the opening left thereby. lFor this reason various forms ofV collapsible piles osed; but such piles,- owin v to their sectiona character, are necessarily 1mited in stren'gth and, moreover, do not overcome the objection of resistance due to the frictional hold of the earth thereupon while they are being driven. When the pile tapers inwardly from to to bottom, there is the same resistance to t e driving of the pile, and the resistance to the withdrawal of the pile is also excessive, because, owing to the atmospheric pressure, theearth is caused to firmly cling to the pile, so as to increase the difliculty .of starting the same. Hence its movement is retarded for some time after it is started. Ir carryin out my invention, therefore, I providev t e ile with an en lar ed point so as to displlice the earth latera 1y at 'an n ai* the point ofthe pile to a greater extent tlian the' diameter of said ile, thereby freeing the pile except as to a imited area at and near t e tional contact with the wal s of the opening formed thereby, thus facilitating the driving of the pile and limit in the depth to which the pile can be driven. To facilitate the withdrawal o'f the' pile, I make this enlarged oint detachable therefrom. .Hence the witlidrawal ofsaid pile can' be effected without frictional contact of the walls of the opening to any material extent with the sides of the pile. The point, which remains at the bottom of the opening, formsari acceptable base or foundatlon for the. concrete.

Thepilejshown consistsof a metal tube '1,

pile of wood or provided at ead `2 and metal, 1f desir this ile being the top with a suitab e drivingj at the bottom with a point 3, which is Iof so much greater diameter thanfthe pile 1 that there 1s no likelihood of the latter coming in lef -the openin formed by driving the pile. The point 3 as a horizontal cross-section pile 1, but of greater. area, so that; the strains upon the v of the same are disf tributed wlth substantial equality about iti the pile to deliect `froma direct-line while it permanent pile ofl cement or oint, from fric- 7 30 practically removing vany l v--contact to any material extent with'the Awalls g i @senso is being driven; The oint has a tapering piles in the ground, comprising a removable lower end, so as to adually dis lace the rvin tube having an unobstructed longieath laterali 'as it advances. fter the tudina. bore, andashoe ofgreater-external reparatory pile has been withdrawn, leav- 'diameter than the tube located at the lower mg its point at the base `of the opening, the end of said tube and detachable therefrom. 70 concrete or cement is poured into the open- 2. An` apparatus for .forming concrete ing, as in Fig. 3, so as toform the permanent iles in the ground, comprising a removable i e 5, resting upon said point 3 as a base or riving-tube having an unobstructed loni- 'oundation. tudinal bore of substantially uniform The pile andits point'can be made of any ameter throughout its length, and a shoeof 75 desired horizontal cross-sectional shape, and greater external diameter than the tube lo the'poinft can be .made of wood, cast' or cated at the lower end thereof and detachvvrought iron, steel, glass, asphaltum, con able therefrom. v crete, or combinations of the eame,or,in fact 3. As a 'device for forming in the ground i of any material which will withstand the an opening for the subsequent reception of 80 shock of driving, the preferable material'for concrete or other uid or lastic material, the 4oint being concrete as the materialof a removable preparatory' pi e having an en- Whic the permanent pile is composed will larged point which is dL-'tachablev from the i effect a .rmer union with such concrete pile, whereby said'pileean be removed from .i0 point than with a point of other material. fthe opening, formed thereby, leaving` the 85 I.T he method of forming openings under point at the bottom of the opening t0- form water consists in formln a 'temporary the base or foundation lfor the permanent 'Water-tight joint between t e hollow pile 1 pile, substantially as specified.

:and the detachable point 3, and,- after the- 4;"As adevice for forming in the ound latter has been driven to the proper depth, an opening for the subsequent recep ion of 90 purin the "eoncrete`.. nto the hollowpile concrete or other Huidl or lastic material, and vwithdrawing the latter, eitherV slowly a removable ,pbpai'atfory pi ehavin an en- ,i'r Va little at a. time, the temporary water` larged point ."vvhiohgl 1sdetachable rom the tight Joint beinbroken 'on the withdrawal pilean in horizontal cross-section approxi- Io the pile, so t at the concrete dan escapee maltesin shapabnt is 11i-area than 95 into the opening above the point,'as shown a like section bt the bodyl ofthe pi1e, subnfFig. 2, the concrete graduallyA dis lacing stantially as e i the water in the' openin :from the ottpm 5. Asa deviee forfoi'ming A inthe ground oitfthe :saine ,to the to' g1 `he concrete is inan opening `for thev subsequent reception of uoedinto the ho ow pileat such a rate concrete 'or other fluid or plastic material, a 100 agi@ waysto maintain a head of eoncrete. at removable preparatory pile having a detachtheo# the same, This system of fillable non-metallic "point, substantially as ing calillsogbe ado ted in where the specified. naturefogf tbegroun is unstable, so as not to 6l A s a4 device for forming in the ground 40 sustaintlieshape of the opening if thepile an opening for tliea subsequent reception of 105 is. wholly fved before introducing the' concrete or other uid or plastic material, a

conoite. f lin'f-either'instan and partieu- `removable preparat'ly p1 e having an enbe is no t 'entirel 7-.` As al device or forming in the ground "110 drawn, but 1s let` to remainadesi'red an opening for the-subsequentJ reox'eption of oegintojjhe vnoli ,-earthyepf that ,the concrete-or other Huid (irplastic material, 1 15d 1595,-pilebr-tm., may filled with agremovable preparati)ryy pile having a detheon *f'orj'eemettothe'desredhei ht tachable point composed of ooncrete, sub- "0 above.,thif-bbdjfiatgr andth'encut oat tantially as specified. 115 this point,- to` lesive tlf upper part `of thec 8.' AS 'a devieeor forming in the ground permanentemente ile `wit a metalcasin opening for .subsequent reception of l 6. Siiclg.,,pil'elrrialy Aforuiedw ;rlilta pentirete other-fluid or latie material, [epara 'ry-pi e av-ing a e a ebintv4 faireinova e reparatie Ip'je aving an enfiitjthe, same dia'ntaetenasv the prepfaa'iatory4 largedfand etaehablypoint composed of 120 f thedetaehable point may' be .of narrate, substantially aaV ed.

ramal-ier" in1wh'ieh latter .instance adev'iee for'forming' in the ground plied' of gie o v 'ning shown in; an opening for the. subsequentreeeption of )employed'i a reonerfete` conc-.rete orjother duid "orlplastiematerial,

tamped" a removable metallic pregiol .1- in adetaehable non-nieta "tia !)y-S-spwd- 1 1 Asia deviee for formng'in the ground 'anopeningforthe subsequent reception of c point, substanratory pilehav-v 125.'

ya'egnovable metallic preparatory pile having an enlarged and detachable non-metallic point, substantially as specified.

11. As a device for forming in the ground an opening for the subsequent reception of concrete-or other plastic or fluid material, a removablemetallic preparatory pile having a detachable point composed of concrete, substantially as specified. 12. As a device for forming in the ground an opening for the subsequent reception of concrete or other fluid or plastic material, a removable metallic preparatory. pile having an enlarged and detachable point Composed of concretetsubstantially as speied.

13. As a device for forming in the ground an opening for the subsequent reception of concrete or other fluid or plastic material,

a hollow preparatory pile or tubehaving a detachable point, and said preparatory pile or tube adapted to form a casing for the upper part of the permanent concrete pile, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. A

RICHARD J. BEALL, JR. lVitnesses:

EMORY H. BOGLEY, HORACE Sm. BEALL. 

